This is the North Carolina speed limit map.
https://www.arcgis.com/home/webmap/viewer.html?webmap=978abf2f2fe341c78f6d52636a60ebff
It can be seen on divided highways, 55 mph, as well as 70 mph. Greenville Blvd north of 10th St is posted at 35 mph and it's really 55 mph.
the Winston-Salem Northern Beltway is posted at 35 and 55 mph and it's posted at 65 mph in reality.
Drawing is incorrect for the Pollocksville area.
I may consider making my own speed limit map in reality but I feel like that will be a lot of work.
It is a lot of work, lol, believe me. And I dismantled my speed limit map section due to the fact I have very little knowledge of most of the USA roads outside of the Southeast (really Florida, Georgia, and Tennessee) and lack of participation (when it was open to editing) from other people editing it. Plus it was getting overwhelming anyway even if I did have the knowledge.
I still have a lot of good content on my website believe me. And I plan to add more. Just dismantled that major chunk. Updating it as we speak.
It's hard to find good speed limit maps, Massachusetts has some alright ones but many states don't have any.